Jay,

including GPS, ILS, VOR, and NDB. I'm sure they've got some contingencies
to shut down access to the internet, for that matter.

Back in the old-days (when men gave birth to the internet ;-) it was called
ARPANet and it's design goal was surviving any kind of attac due to being
de-centralized...

So, guess that thing will last longer than we do..... ;-)

Regards

Kai